Lack of evidence for segregation of a single dominant major gene as the cause of the difference in egg weight between two highly inbred lines of chickens |
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| Authors: | C Hagger C Stricker R C Elston G Stranzinger |
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| Institution: | (1) Institute of Animal Sciences, Swiss Federal Institute of Technology, ETH-Zentrum, TAN 1, CH-8092 Zuerich, Switzerland;(2) Department of Biometry and Genetics and the Center for Molecular and Human Genetics, Louisiana State University, Medical Center, 1901 Perdido Street, 70112-1393 New Orleans, USA |
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| Abstract: | Data on egg weight from experimental crosses with two inbred lines of chickens suggested evidence for segregation of a single dominant major gene. Because the data could not be transformed to satisfy normality and homoscedasticity conditions, the non-parametric test of Elston and the graphical approach used by Stolk et al. were applied. Due to a bad fit of the backcross B2 (P2×F1) and the F2 groups, both methods reject the hypothesis of a dominant major gene as the the only cause of the differences in egg weight between the six genetic groups involved. |
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| Keywords: | Inbred lines Non-parametric test Major gene Egg weight Chicken |
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